Repositories list

• translated-content

  Public
  7 community-maintained translations of MDN Web Docs in ES, FR, JA, KO, PT-BR, RU, and ZH, to learn and contribute in your native language.

  documentationweb-developmentlocalization+ 3

  documentationweb-developmentlocalizationmdnl10nweb-platform

  Markdown

  •

  Other

  •8.3k8.3k forks•2k2k stars•227227 issues•223223 pull requests•Updated Apr 28, 2026Apr 28, 2026

• fred

  Public
  MDN's frontend since late 2025, built with Web Components, Lit, and SSR for a fast, clean documentation experience. Fred = /fr(ont)e(n)d/.

  ssrweb-componentslit

  ssrweb-componentslit

  JavaScript

  •

  Mozilla Public License 2.0

  •4747 forks•202202 stars•122122 issues•2828 pull requests•Updated Apr 28, 2026Apr 28, 2026

• dex

  Public
  MDN's deployment infrastructure.

  JavaScript

  •

  Mozilla Public License 2.0

  •44 forks•22 stars•99 issues•77 pull requests•Updated Apr 28, 2026Apr 28, 2026

• mdn-http-observatory

  Public
  Backend for HTTP Observatory on MDN

  httpsecurityprivacy+ 3

  httpsecurityprivacymdnsecurity-toolshttp-headers

  JavaScript

  •

  Mozilla Public License 2.0

  •3535 forks•125125 stars•1515 issues•77 pull requests•Updated Apr 28, 2026Apr 28, 2026

• translated-content-de

  Public
  Experimental German locale for MDN, aimed at German-speaking users that prefer to read MDN Web Docs in their native language

  Markdown

  •

  Other

  •1717 forks•1717 stars•55 issues•11 pull request•Updated Apr 27, 2026Apr 27, 2026

• mdn-community

  Public
  A place to provide feedback and suggestions for MDN Web Docs

  communityfeedbackmdn+ 1

  communityfeedbackmdngovernance

  Mozilla Public License 2.0

  •5353 forks•151151 stars•99 issues•11 pull request•Updated Apr 27, 2026Apr 27, 2026

• beginner-html-site-scripted

  Public
  A single-page website created to help complete beginners learn HTML with JS added to help beginners learn JavaScript. Supports https://developer.mozilla.org/en-…

  javascripthtmllearning+ 1

  javascripthtmllearningexample

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •303303 forks•277277 stars•00 issues•22 pull requests•Updated Apr 27, 2026Apr 27, 2026

• tree-sitter-mdn

  Public
  MDN's macro grammar for tree-sitter

  JavaScript

  •

  MIT License

  •33 forks•33 stars•00 issues•22 pull requests•Updated Apr 27, 2026Apr 27, 2026

• content

  Public
  The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.

  javascriptcsshtml+ 7

  javascriptcsshtmllearninghttpdocumentationweb-developmentreferencemdnweb-standards

  Markdown

  •

  Other

  •23k23k forks•11k11k stars•353353 issues•109109 pull requests•Updated Apr 27, 2026Apr 27, 2026

• browser-compat-data

  Public
  Browser compatibility data for Web technologies as displayed on MDN

  jsondatadataset+ 2

  jsondatadatasetcompatibilitycompat

  JSON

  •

  Creative Commons Zero v1.0 Universal

  •2.5k2.5k forks•5.7k5.7k stars•408408 issues•4040 pull requests•Updated Apr 27, 2026Apr 27, 2026

• rari

  Public
  Rari is a Rust-based build system that transforms markdown into structured JSON, powering MDN Web Docs content and translations since 2024.

  infra

  infra

  Rust

  •

  Other

  •3434 forks•4646 stars•5353 issues•1010 pull requests•Updated Apr 27, 2026Apr 27, 2026

• watify

  Public
  Compile WAT to WASM with WASM 🙇

  HTML

  •

  Mozilla Public License 2.0

  •00 forks•44 stars•00 issues•33 pull requests•Updated Apr 27, 2026Apr 27, 2026

• yari

  Public
  The platform code behind MDN Web Docs

  mdnyari

  mdnyari

  TypeScript

  •

  Mozilla Public License 2.0

  •552552 forks•1.3k1.3k stars•22 issues•88 pull requests•Updated Apr 27, 2026Apr 27, 2026

• todo-vue

  Public
  Sample todo app built with the Vue framework

  todovuejsvue+ 1

  todovuejsvuemdn

  Vue

  •

  Mozilla Public License 2.0

  •9292 forks•141141 stars•00 issues•11 pull request•Updated Apr 27, 2026Apr 27, 2026

• mcp

  Public
  MDN's prototype MCP server

  JavaScript

  •

  Mozilla Public License 2.0

  •77 forks•3131 stars•00 issues•33 pull requests•Updated Apr 27, 2026Apr 27, 2026

• data

  Public
  This repository contains general data for Web technologies

  cssjsondata+ 1

  cssjsondatajson-data

  JavaScript

  •

  Creative Commons Zero v1.0 Universal

  •212212 forks•776776 stars•3636 issues•55 pull requests•Updated Apr 27, 2026Apr 27, 2026

• bcd-utils

  Public
  toolinginfrabcd+ 1

  toolinginfrabcdbrowser-compat-data

  JavaScript

  •

  Mozilla Public License 2.0

  •1010 forks•66 stars•00 issues•22 pull requests•Updated Apr 27, 2026Apr 27, 2026

• rumba

  Public
  The clean kuma (🤖🧹)

  rust

  rust

  Rust

  •

  Mozilla Public License 2.0

  •2222 forks•6060 stars•33 issues•66 pull requests•Updated Apr 27, 2026Apr 27, 2026

• client-toolchain-example

  Public
  Demo project for the MDN client-side web development tools tutorial.

  javascripttoolchaindemo+ 1

  javascripttoolchaindemoexamples

  JavaScript

  •

  Other

  •11 fork•77 stars•00 issues•11 pull request•Updated Apr 23, 2026Apr 23, 2026

• triagebot

  Public
  automation

  automation

  JavaScript

  •

  MIT License

  •22 forks•55 stars•00 issues•11 pull request•Updated Apr 22, 2026Apr 22, 2026

• generic-content

  Public
  Various pieces of generic MDN content

  community

  community

  Other

  •88 forks•22 stars•22 issues•11 pull request•Updated Apr 22, 2026Apr 22, 2026

• learning-area

  Public
  GitHub repo for the MDN Learning Area.

  learninglearning-jsmdn-docs+ 1

  learninglearning-jsmdn-docslearning-to-code

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •27k27k forks•7.6k7.6k stars•00 issues•22 pull requests•Updated Apr 22, 2026Apr 22, 2026

• css-examples

  Public
  Code examples that accompany the MDN CSS documentation

  cssexamples

  cssexamples

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •833833 forks•647647 stars•1010 issues•00 pull requests•Updated Apr 22, 2026Apr 22, 2026

• todo-react

  Public
  Sample todo app built with the React/ReactDOM framework.

  reactdemotodo+ 1

  reactdemotodoexample

  JavaScript

  •

  Mozilla Public License 2.0

  •317317 forks•270270 stars•00 issues•77 pull requests•Updated Apr 22, 2026Apr 22, 2026

• django-diy-blog

  Public
  Basic blog site written in Django (part of MDN Django module assessment).

  pythonblogdemo+ 2

  pythonblogdemodjangoexample

  Python

  •

  Creative Commons Zero v1.0 Universal

  •127127 forks•229229 stars•00 issues•22 pull requests•Updated Apr 21, 2026Apr 21, 2026

• django-locallibrary-tutorial

  Public
  Local Library website written in Django; example for the MDN server-side development Django module: https://developer.mozilla.org/en-US/docs/Learn/Server-side/D…

  pythondemodjango+ 2

  pythondemodjangoexampleweb-app

  Python

  •

  Creative Commons Zero v1.0 Universal

  •958958 forks•1.7k1.7k stars•00 issues•44 pull requests•Updated Apr 21, 2026Apr 21, 2026

• curriculum

  Public
  MDN front-end developer curriculum

  learningeducationweb-development+ 2

  learningeducationweb-developmentcareerbeginners

  TeX

  •

  Other

  •5151 forks•381381 stars•33 issues•00 pull requests•Updated Apr 21, 2026Apr 21, 2026

• mdn-contributor-spotlight

  Public
  Content for the contributor spotlight on MDN Web Docs

  communityachievementskudos

  communityachievementskudos

  Mozilla Public License 2.0

  •44 forks•44 stars•00 issues•00 pull requests•Updated Apr 20, 2026Apr 20, 2026

• webextensions-examples

  Public
  Example Firefox add-ons created using the WebExtensions API

  browsermdnwebextensions+ 1

  browsermdnwebextensionswebextensions-apis

  JavaScript

  •

  Mozilla Public License 2.0

  •2.6k2.6k forks•4.4k4.4k stars•1616 issues•1313 pull requests•Updated Apr 20, 2026Apr 20, 2026

• workflows

  Public
  Reusable GitHub Actions workflows

  infragithub-actions

  infragithub-actions

  Mozilla Public License 2.0

  •2424 forks•4848 stars•00 issues•00 pull requests•Updated Apr 20, 2026Apr 20, 2026